The Hairy Hundred is the epitome of gravel riding in Boone County, Missouri. The event starts and finishes at Katfish Katy’s just Southwest of Columbia. From there the course will loop through 100 miles of some of the finest gravel roads. It won’t be easy – it will be fun – probably… The Hairy Hundred is a self-supported ride. We’re not gonna let you die out there, but plan on wearing your big girl/boy pants.